#!/bin/sh

# Slackware build script for Exim 
# http://www.exim.org/
# Copyright 2008  Thales A. Tsailas (ttsailas@enforcingit.com)
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# *Extensively* edited by the SlackBuilds.org project. -michiel.

PRGNAM=exim
VERSION=4.69
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

EXIMUSER=${EXIMUSER:-exim}
EXIMGROUP=${EXIMGROUP:-exim}
EXIMUID=${EXIMUID:-222}
EXIMGID=${EXIMGID:-222}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
fi

# Exit on most errors
set -e 

# Check if the exim and user group exist. If not, then bail
if ! grep ^${EXIMGROUP}: /etc/group 2>&1 > /dev/null; then
cat << EOF

  You must have a ${EXIMGROUP} group to run this script.
  For example: groupadd -g ${EXIMGID} ${EXIMGROUP}

EOF
  exit
elif ! grep ^${EXIMUSER}: /etc/passwd 2>&1 > /dev/null; then
  cat << EOF

  You must have a ${EXIMUSER} user to run this script.
  For example: useradd -u ${EXIMUID} -d /var/spool/exim -s /bin/false -g ${EXIMGROUP} ${EXIMUSER}

EOF
  exit
fi

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

# Set the right compiler flags and settings.
# Edit {exim,eximon.Makefile} if you want to change any of these.
sed -e "s/#SLKCFLAGS#/$SLKCFLAGS/" $CWD/exim.Makefile > $TMP/$PRGNAM-$VERSION/Local/Makefile
sed -e "s/#SLKCFLAGS#/$SLKCFLAGS/" $CWD/eximon.Makefile > $TMP/$PRGNAM-$VERSION/Local/eximon.conf

make all 
make install DESTDIR=$PKG

( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)

mkdir -p  $PKG/usr/man/man8
cat doc/$PRGNAM.8 > $PKG/usr/man/man8/$PRGNAM.8
gzip -9 $PKG/usr/man/man8/$PRGNAM.8

mkdir -p $PKG/etc/{logrotate.d,rc.d}
cat $CWD/rc.exim.new > $PKG/etc/rc.d/rc.exim.new
cat $CWD/$PRGNAM.logrotate > $PKG/etc/logrotate.d/$PRGNAM
mv $PKG/etc/exim/exim.conf $PKG/etc/exim/exim.conf.new
mv $PKG/etc/aliases $PKG/etc/aliases.new

mkdir -p  $PKG/var/log/exim
mkdir -p -m 0750 $PKG/var/spool/exim/
mkdir -p -m 0750 $PKG/var/spool/exim/{db,input,msglog}
chown -R $EXIMUSER:$EXIMGROUP $PKG/var/{log,spool}/exim

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION 
cp -a ABOUT ACKNOWLEDGMENTS LICENCE CHANGES doc/* $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.tgz
